Key West, FL

Weather Forecast Office

NWS Key West

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Last Map Update: Wed, Sep 30, 2026 at 8:26:43 am EDT

Watches, Warnings & Advisories

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Coastal Flood Advisory

Coastal Flood Statement

Marine Weather Statement

Short Term Forecast

Coastal Flood Advisory

Brief Lull This Morning

Island Chain

Marine Winds

Wave Heights

A Coastal Flood Advisory is in effect for all of the Florida Keys. A Coastal Flood Advisory is in effect for the Lower and Middle Keys. Saltwater flooding of low elevation streets and lots is expected. Some storm drains will overflow, and some seawalls and docks will be overtopped. Boaters should expect less clearance under fixed bridges. Motorists should remember that persistent puddles around the times of high tide are almost certain to contain a mix of saltwater. For more information on coastal flooding, refer to www.weather.gov/key/coastal_flooding

We are currently in a brief lull in the convection thanks to the atmosphere being “worked over” from last night’s activity. However, we are watching the next round moving through Cuba this morning and it is poised to reach the Keys within the next 6 hours (or about mid-late morning). As such, we continue to carry likely chances (70%) of more showers and thunderstorms today. In addition, with ongoing King Tides, should periods of heavier rainfall occur during times of high tides we can expect periods of enhanced flooding. Image is a “Sandwich” satellite imagery showing deep convection (noted as shades of orange/red) across Cuba and the southern Bahamas.

TODAY...Highs in the 80s. Winds E @ 10-15 mph (9-13 knots). Mostly Cloudy with showers likely and a chance of thunderstorms.

TODAY...Gentle to moderate east breezes. Seas... Bay/Gulfside 1-2 feet, W of Marquesas ~2 feet, bldg to 3-4 feet, ocsnl ~5 feet, Hawk Channel ~2 feet, bldg to 2-4 feet, ocsnl ~5 feet, FL Straits 2-3 ft, bldg to 3-5 feet, ocsnl ~6 feet, SE Gulf 2-4 feet, oscnl ~5 feet. Bay and nearshore waters a light to moderate chop, becoming a moderate chop. Showers likely with a chance of thunderstorms.

TODAY...Gentle to moderate east breezes. Seas... Bay/Gulfside 1-2 feet, W of Marquesas ~2 feet, bldg to 3-4 feet, ocsnl ~5 feet, Hawk Channel ~2 feet, bldg to 2-4 feet, ocsnl ~5 feet, FL Straits 2-3 ft, bldg to 3-5 feet, ocsnl ~6 feet, SE Gulf 2-4 feet, oscnl ~5 feet. Bay and nearshore waters a light to moderate chop, becoming a moderate chop. Showers likely with a chance of thunderstorms.

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Heavy Rainfall Continues from the Southwest to the Plains; Severe Thunderstorms in the Southern Plains

NWS Key West